Add Custom Properties Into Control Objects In ExtJs

Jan 25 10 at 22:52

How can I add custom properties into control objects in ExtJs.

For example :


This control comes from server dynamically and I want to write my custom property as well like below :


I tried it but it said undefined. Normally since JavaScript is loose, I can easily modify objects but in this case it wouldn't work the way I expected.


Custom Server Controls :: Custom Control's Constructor / User To Set That variable In The Properties Window After They Drag The Control Onto A Form?

Mar 04, 2010 03:56 PM

I have a custom control which inherit from the Table class and in the constructor, it takes a an integer as an argument. There is no empty constructor.

Is there a way for the user to set that variable in the properties window after they drag the control onto a form.

I know some .NET controls, you can set the source for the parameter to different things like another control's property, QueryString using just the properties window.

Right now, I have to create the control dynamically. I read the query string and then created the object.

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Custom Server Controls :: Binding Properties Of A Custom Control In A ListView?

Jul 06, 2009 08:06 PM

I have a custom control derived from CompositeControl that I'm using in the EditItemTemplate and InsertItemTemplate of a ListView. The ListView's data source is an ObjectDataSource.

I use <%#Bind('fieldname') %> to bind the properties of my custom control. I have found that the data will be displayed in my custom control, but when I try to update or insert, the data is not retrieved. I checked the onitemupdating event and saw that NewValues.Count was zero.

Does my custom control need to implement somthing special in order to return its data?

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Custom Server Controls :: Custom Control And Properties Window?

Jun 01, 2010 12:37 PM

I have made a composite control that has 1 Label Control ,1 TextBox ,1 button and 1 Panel Control. Below is my code:

namespace ServerControl1


The above code compiles without any error. Also I can drag and drop this control from the Toolbox of my Project on my web form. However I am unable the change the value of my fromLabel control.It allows me to change the value in the properties window.But when I run the form it always shows me its default value which is "From". I want it to be flexible so that any one can change the value in the properties window.

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Custom Server Controls :: Why Custom Gridview Control Not Render HTML Properties Under Properly In Visual Studio 2005

Mar 05, 2010 01:50 PM

Why custom Gridview control not render html properlies under <Columns> properly in Visual Studio 2005?

For example:


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Custom Server Controls :: Expose All Properties Of A Child Control In A Composite Control?

Sep 14, 2006 06:45 PM

I have a composite control consisting of a GridView and a TextBox.

Is there any way I can expose all properties of the GridView without delegating each property individually?

Eg: Is it possible to do a :


How can I acheive this kind of thing? Is there any way to get this to work in composite controls where we can delegate all properties of a child control to the control at a time or do we have to write get-set for each property we wish to delegate to child control?

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C# - Setting Custom Control Properties?

Apr 20 10 at 20:24

I though it would be very simple but I can not get it today.I have a user control, with a grid control contained in it.

public Unit Width


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MVC :: Set Properties Of Custom Control Dynamically Without Codebehind?

Jun 10, 2009 06:17 PM

I am practicing not using codebhind in my view pages. So I have my own custom server control (which I need to use, there is no way around that) In my controller class, I set this viewData:

ViewData["MyCustomControlText"] = "Hello World";
In my view page. I want to set Text property of myControl...something like this:
Text="<%=ViewData["MyLabelText"].ToString(); %>"></myControl:label

This won't work... it just literally prints out <%=ViewData["MyLabelText"]; %>. This is really easy if I had codebehind.

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Custom Control Properties Not Initializing Properly

Dec 14 10 at 0:40

The First - LblTextBox:

A label and textbox that have a LabelText field that can be set to change the label text

The Second - LoginCtl:

A login control that has two instances of LblTextBox for user name, password and a submit button

I want to control the tag rendering of these controls for formatting so I am not overriding CreateChildControls() to get the job done.

My issue is that the controls are rendered but none of the OnInit() code in either controls takes hold (blank labels, css styles not applied, etc..).


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Web Forms :: Get List Of Custom Properties Of User Control?

Sep 15, 2010 07:41 AM

With following code, I can fetch all properties of user control. I need to get only those properties which were separately defined excluding the default ones.


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Jquery - Creating A Custom Control In Javascript Properties And Methods?

Feb 23 at 16:29

As a starting point for creating custom controls, I would like to make a control that simply displays a number. If we imagine the .ascx file contains nothing except for a literal control, and the code behind sets that value to 1.

I then want to be able to do myControl.increment();
This will run some javascript that increases the value of the literal control.

I could inject a javascript into the page, such as pseudocode:

scriptything.register("function increment(x) { $('#myLiteral').increment(); });

or something, but that wouldn't be myControl.increment, that would just be increment(). More than one control on the page would screw it up.

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Custom Server Controls :: How To Control Child Properties And ViewState

Dec 26, 2008 02:52 PM

I am developing a customized validation server control . I am trying to save validations as child property but i am unable to do so if i write property in html view control is not picking it and if i write properties through ... button on propertyeditor then values are not saved in design html.

also tell me that where to maintain control's View State.


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Missing Intelligence While Describing Custom Control Properties Declaratively

May 21 10 at 21:51

I've been working on this project for a few days now, and have been unable to resolve the issue of getting intellisense support for my custom-defined inner properties for a user control (ascx, mind you). I have seen the solution to this (using server controls, .cs mind you) many times. Spelled out in this article very well. Everything works for me while using ascx controls except intellisense. Here's the outline of my code:

public partial class styledcontrols_buttons_BreadCrumb : System.Web.UI.UserControl
public List<BreadCrumbItem> BreadCrumbItems
get { return _breadCrumbItems; }
set { _breadCrumbItems = value; }
protected override void AddParsedSubObject(object obj)
if (obj is BreadCrumbItem)
BreadCrumbItems.Add(obj as BreadCrumbItem);
public class BreadCrumbItem : ControlBuilder
public string Text { get; set; }
public string NavigateURL { get; set; }
public override Type GetChildControlType(string tagName, System.Collections.IDictionary attribs)
if (String.Compare(tagName, "BreadCrumbItem", true) == 0)
return typeof(BreadCrumbItem);
return null;

Here's my mark up (which works fine, just no intellisense on the child object declarations):

<%@ Register src="../styledcontrols/buttons/BreadCrumb.ascx" tagname="BreadCrumb" tagprefix="uc1" %>
<uc1:BreadCrumb ID="BreadCrumb1" runat="server" BreadCrumbTitleText="Current Page">
<BreadCrumbItem Text="Home Page" NavigateURL="~/test/breadcrumbtest.aspx?iwentsomewhere=1" />
<BreadCrumbItem Text="Secondary Page" NavigateURL="~/test/breadcrumbtest.aspx?iwentsomewhere=1" />

I think the issue lies with how the intellisense engine traverses supporting classes. All the working examples I see of this are not ascx, but Web Server Controls (cs, in a compiled assembly).

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Custom Server Controls :: Can't Set Value In Properties Window Of Composite Control

Aug 04, 2009 02:19 PM

I've created an Composite Control with a CheckBox and a RadDatePicker (telerik controls). I've exposed the Checked property from the Checkbox through a public property.It happens that when using my checked property in the properties window in design time in a ASP.Net project my set value disappears on blur,but it is added in my aspx code page as an attribute.I've tried to replace the CheckBox/Checked with a Label/Text property and the same happens.
Here is my code:

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Web Forms :: Setting Custom Properties Of A User Control Loaded In A Web Part

Sep 15, 2008 04:54 PM

I've created a user control with some custom properties. Next, I've created a web part where I loaded my user control and added a label.

I've connected this web part with another web part and I'm setting both the value of the label and the value of one property of the custom control to a string variable that I receive from the connection.

The label text is being correctly updated, but the user control property isn't (I know this because I have a button on the control that puts the contents of the custom variable in a textbox and nothing is appearing there).

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How To Expose Child Control Style Properties In A Custom Composite WebControl

Feb 23 10 at 19:00

I am writing a custom composite WebControl and want to expose styles of child controls it encapsulates to the ASP.NET designer. The code I currently have is similar to the skeleton below (which for simplicity only has one child control).

With the code below, I can see property "ChildPanelStyle" in the designer, but when I try to modify one of the properties (e.g. CssClass) in the designer, it immediately resets itself to its default value. It looks like the designer serialization isn't happening.

What am I doing wrong?


I've updated the sample with an additional style property that is managed directly by the custom control, rather than simply being the property of a child control.

The HeaderStyle property is persisted properly by the designer, but the ChildPanelStyle property isn't.

Of course I could manage all my styles like HeaderStyle, and apply them during rendering, but I'm hoping there's a simpler solution whereby child controls can take care of themselves, and I don't need any custom rendering.


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Custom Server Controls :: Composite User Web Control - Properties - Best Practice

Jan 12, 2011 01:24 PM

I would like to ask you what is the best practice for developing composite user web control with multiple controls inside from the stand point of dealing with properieties. In my situation I would like to use header menu bar with logos, buttons, java baset visible/hidden menus itc as web control. I was successfull in implementing new control in my project.

But my question goes to issue of properties for ALL OF controls. I know how to hard code all required properties like: text, visible, enable for all controls. It's a lot of work. ( This is the very edge of my comprehension ) Is there a more elegant way provide an access to controls's properties without hard coding seperatelly?

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C# - Load A User Control In An Ajax WCF Service And Access Custom Properties?

Apr 4 at 16:23

I can load a generic user control just fine in my WCF service doing the following:

UserControl userControl= (UserControl) new Page().LoadControl("~/UserControls/MyControl.ascx");

However i can't seem to find any way to do this

MyControl myControl=(MyControl)userControl;

The reason i need to do this is because my user control has a custom property, person, I need to do the following:

myControl.Person=new Person();

essentially i need to simulate:

<%@ Reference Control="~/UserControls/MyControl.ascx" %>

which normally goes inside page or master-pages.any way of doing this in an Ajax Enabled WCF Service?

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Does A Composite Server Control(inc. User Control, Custom Server Control) Normally Encapsulate Css Properties?

Nov 7 10 at 2:11

If a composite server control normally encapsulate styling information inside, it is an example of code encapsulation and modularization. However if css properties are included inside the composite control, it is not ideal for code/styling separation and css code re-use principles. Now which consideration should be the main consideration?

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Custom Server Controls :: User Control Can't Access The Parent Pages Public Properties

Feb 27, 2008 05:29 PM

I have built a page that is contained within a master page and it holds 2 user controls

Control A contains a DataList

Control B contains a FormView

I want to pass the selected index from the DataList on Control A to the FormView on Control B so it acts like a master / detail scenario

I created a public property on the page that contains both controls called DataListSelectedIndex A also created a public property for DataListSelectedIndex on the Control I populate the DataListSelectedIndex property of the Control when the DataList_SelectedIndexChanged event is fired And I populate the DataListSelectedIndex property of the page on the OnLoad event of the page.

My problem is that on Control B - (or Control A for that matter) I can't access the public property DataListSelectedIndex

The method I am trying to access this is through - this.Page on the OnLoad even of the Control

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Custom Server Controls :: Create A Dropdown List Of Selectable Properties In A User Control?

Dec 03, 2009 02:20 PM

I have developed a user control that has a boolean property. In the VisualStudio properties window I would like to have one of those little drop-down lists with the words True and False that would set the value in the {set} code to a boolean true or false. How do I do that? How would I set a drop-down list of text items for a string property.I know how to set the properties from the properties window...I just want to know how to display the list of selectable items.

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Custom Server Controls :: Accessing Properties Of A User Control From The Inherited Code Page?

Mar 08, 2010 11:16 PM

If the answer to this question exists somewhere, I'm no good at searching for it. This is sort of a simple question, the response being two parts: (1) is it possible? (2) if so, how?

I've created a web user control for my site's footer. In my web.config I have it registered like this:


Then, within the pages on my site, I simply insert it like this:


But obviously, that didn't work. I get this error: The type or namespace name 'FooterControl' could not be found (are you missing a using directive or an assembly reference?)

So I'm really not sure what to do at this point. I can put all of my code in the ASPX file and make my life easier, but I would kind of prefer not to.

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Web Forms :: Databinding A ListView To An Objects Properties?

Nov 17, 2009 03:20 PM

I'm making a web project.

I have a ListView that I want to databind to a object that contains 4 properties with values like; firstname, age etc.

I purpose with this is to make the ListView show the values of the properties.

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Dynamic Data Be Made To Work With Custom Business Objects Rather Than Data Objects?

Feb 24 10 at 3:14

I'm working on a project in which we have a database, data layer (entity framework), business layer and web/UI layer.I want to use ASP.NET Dynamic Data for the web layer, but don't want it to access the data layer or database, as I want it to be purely running off business logic, and not directly accessing the data.However, it appears that Dynamic Data only allows Linq-to-SQL or entity framework data sources to be used.Has anyone used it with business-layer objects instead?

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How To Bind Form Collection Back To Custom Model Object That Uses 2 Custom Objects

Mar 23 10 at 2:50

What I'm trying to do is rather basic, but I might have my facts mixed up. I have a details page that has a custom class as it's Model. The custom class uses 2 custom objects with yet another custom object a property of one of the 2. The details page outputs a fair amount of information, but allows the user to post a comment. When the user clicks the post button, the page gets posted to a Details action that looks something like this:

public ActionResult Details(VideoDetailModel vidAndComment) { ....}

The only fields on the form that is posted are CommentText and VideoId. Here is what the VideoDetailModel looks like.

public class VideoDetailModel
public VideoDetailModel()
I suppose if I added more form fields for the properties I need, they would get posted, but I only need 1 form entry field for the CommentText. If I could get the same Model objects value that were sent to the page to post with the page, it looks like the solution is rather simple. I think using the RenderPartial in the middle of a form is problematic somehow to how the form gets written in html. I can't really put my finger on why things went bonkers, but if I do my RenderPartials before my form and then begin my form with the text entry field and the hidden VideoId, the default ModelBinder works just fine. I was beginning the form, writing the hidden VideoId, rendering several partial views, create my CommentText field, and then closed the form out. The CommentText field would get bound just fine. The hidden VideoId would not. Maybe I missed a rule somewhere about using RenderPartial.

For completeness, the partial view I was rendering took a Comment object and just wrote out it's CommentText data. Several of these objects would exist for a single Video object. All of this data was in a custom type and passed into the View (the main view) as it's Model. This partial view did not have a form and did not have any data entry fields.

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Custom Server Controls :: Access Properties Of Custom WebControl In ASPX Codebehind File?

Jul 19, 2009 05:59 AM

I have created a custom control that derives from WebControl class. I have defined a property called "ItemCount" in the custom control.

This custom control is created as a separate project and the assembly is added to the main web project (VS 2005 Web Site).

Just to test, I have only one line writer.Write("Hello World!") in the overriden "RenderContents" method in the web control.

Once added to the aspx file, the control renders the text perfectly fine and is declared in the aspx file as

<cc:mycontrol ID="_testControl" runat="server"/>

Now, when I try to access the control "_testControl" in the codebehind, I cannot compile and I get the error as "The name '_testControl' does not exist in current context.

After reading multiple posts, I tried declaring the control in my aspx codebehind as

protected MYControl _testControl;

This comes out to be NULL during run-time. I'm not too familiar with, but if other controls (e.g. Button, Textbox) are accessible in my codebehind including their properties, should the same logic be not applied to WebControls...they are all the same!

I can create a new instance of the _testControl in the OnInit method, but that defeats the whole purpose. I need to understand what is going on and what is the right way to solve it.

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Custom Server Controls :: How To Get The Value Of Readonly Properties Of Server Controls Inside A Custom Server Control

Apr 04, 2010 10:33 PM

I have a custom server control inheriting from CompositeControl. It consists of two RadioButtonlist controls that are rendered side by side in an html table. The number of ListItems in each RadioButtonList is not known until runtime. Depending on how many items each list contains, the RepeatColumns property of each list is set differently. To do this in the handler for the ItemDataBound event I need to get the count of ListItems in each RadioButtonList. How do I expose the Items.Count property of each internal RadioButtonList as a top-level property? I tried using a getter to return the count but this generates a compile-time error to the effect that the count cannot be assigned to--even though I have not created a setter.

Similarly, in the handler for the Submit event, I need to get the ClientID of each internal RadioButtonList to pass to a method that checks for data changes. How do I expose the ClientID of each component RadioButtonList as a top-level property?

I can of course index the Controls collection of the composite control to access the child control and read its properties--but that defeats the whole point of making a complex, independent custom server control.

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Creating Custom Objects For Wcf?

Oct 2 10 at 1:14

I have an existing web application that uses EF and POCO objects. I want to improve the client experience by exposing some of my objects through WCF(JSON). I have this working fine but where I am unsure is how to handle derived objects(not sure if that is the correct term) or IEnumerable anonymous objects if you will.

Let's say I have 3 tables structured like so:







This is obviously a one-to-many type relationship. I have my navigation properties setup correctly and getting strongly typed object properties works great. However, how do I send serialized anonymous type object(s) over the wire. Like an object that sends all instances that are equal to groupid=1 and include the names of the template and the object.Am I missing something or do I have to create another class object for WCF that would look like this:

WCF Object


I guess I could alter my tables to account for this but that seems wrong too. I know that IEnumerable objects can't be serialized and I know that throw away objects are probably not the way to go either. I want to do this the right way but I am not sure how to go about it.

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AJAX :: Custom Objects In JS?

Nov 20, 2006 02:16 PM

Ive seen in some examples a way of creating a CS / VB.NET object in javascript and passing that objects to your webmethods?

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$.ajax(..) And Passing Custom Objects By Ref?

Dec 10 10 at 15:23

How to use $.ajax(..) JSON to invoke asmx webmethods that have 'by ref arguments' for custom classes/objects? Is it possible?

My c# code -
public class MyCustomClass{ public int MyProperty; MyCustomClass(){}}
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public Method1(ref MyCustomClass MyCustomObj)


This all works fine if the webmethod's argument is NOT by ref.With the above mentioned signature of the webmethod, i.e. with a by ref argument, I get a server error (in server response seen using firebub ) -

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How To Expose Custom Object (with Sub Objects) In Web Service

Feb 11 10 at 16:03

I'm kinda new to web services and want to make sure I am doing things correctly.

I have a custom object which has sub objects as well. (let's say Company object, sub object is collection of Employee objects)

I want the web service to return a collection of Company objects. Do I make the service return a Dataset and custom generate a dataset with datatables representing the different objects?

What is the best way to do this? I tried to just serialize it, but that doesn't seem to work either.

I tried this dll


But the output XML doesn't seem to include the sub object.

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MVC :: Restore List Of Custom Objects On Postback?

Oct 21, 2010 06:49 PM

I have a model containing a List with custom objects, let's say Customer objects. Like this:


In the View I print out (for simplicity) the name and id of the customer objects on the model. How to restore these values on postback if the method signature looks like this:


Should I use hidden values? This is not possible if the List contains items of interface type, for example List<ICustomer> where ICustomer is an interface. Is there any other way to "save" the values on each postback? For example I may want to view validation error messages when the user submits the form and then the properties of the customer object must still be there..

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ADO.NET :: Create Collection Of Custom Data Access Objects?

Dec 30, 2010 02:53 PM

I am using to retrieve data from a Lotus notes DB using OLEDB connection. I use a ADOrecordset to read the values. When I open the ADo connection, I would like to store each record being read in a custom object and thereby create a collection of custom objects as ADO connection times out when kept open for long.

I then need to iterate throught the collection of custom objects to retrieve the values.

I am using 2010

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WCF / ASMX :: Webservice Custom Objects As Input Parameters?

Nov 09, 2010 01:56 AM

I have a fundamental question to ask about web services. I'm currently writing a service that has custom classes (lots of them). Let's say a car is one example. For some reason I was thinking that the service should expose these objects. However once I created a site to consume the service, it looks as though the classes are not meant to be exposed. It looks like the best practice is to take in a string which may be xml or not and convert that string into the object in the service code.(especially for error handling or input validation)

For example, if I had the web method:

public car getCar(int carId)
//code here to return car object

This will take a car ID and return a car object. It also shows all the elements in the SOAP request and response objects (as well as the WSDL) which can be to external developers. However, when trying to consume the service from a website (or reference it in my code), I then need access to the Car class (which implies i need to expose it through the services as well?).

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Web Forms :: Custom Objects In Webservice Returns Null?

Aug 24, 2009 04:22 PM

I have a web service with custom object implementation.i have given a list as return type the code is shown below. and this is my webservice code





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C# - Gridview Insert Delete With Custom Objects In Viewstate?

Dec 10 10 at 10:39

I want to design a nested gridview with insert, update, delete functionality through custom business objects dynamically inside viewstate.

(Master Gridview)
EmployeeID EmployeeName
1 Ted
(Child Gridview)
ItemID ItemName
1 Keyboard
2 Mouse
2 John
(Child Gridview)
ItemID ItemName
3 Printer

I have done this in the past with datatable/dataviews but they are a real memory hog.

How do I implement Master/Detail functionality with business objects ? What is the alternate to Dataview in master detail/business objects.

I know its a rather broad question but its worth getting started on something =)

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C# - How To GetProfile By Custom Properties

Mar 9 at 19:58

<profile enabled="true" automaticSaveEnabled="false">
<add name="InvitationCode" type="String"/>

How to get profiles with InvitationCode="foo"? Also can i make property unique?

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Forms Data Controls :: Gridview Two Way Binding And Custom Objects?

Nov 24, 2010 05:47 PM

I have been reading alot about this and for some reason I am just not able to grasp the concept. Hopefully someone here can enlighten me.As an example situation I have a collection of strongly typed User objects that represent a database table, and some properties that represent its columns: UserID(PK), Username,FirstName,LastName, etc..Here are some of my requirements/goals:1. Users/Objects needs to be bound to the gridview programatically.2. I do not want to update the database right away, I only want the underlying collection to be updated. I would like to call the database update method myself when I am ready.
3. I do not want the primary key stored on the client side.Summary:So I bind a List<Users> to a gridview with the appropriate bound fields set up, I exlude bound fields such as primary key because I don't want it being changed/hacked by the client side. When I edit and update a row it is saved back to the collection of objects. I will iterate through the objects manually at a later time and commit them to database.

Questions:1. Can I cast a gridview row directly back to my object, in the RowUpdating or RowUpdated events? I am assuming I can't... So....2. How can I reference back my original collection if the gridview does not contain a primary key?3. Where do I store my collection, should it be in Session or should I recreate it on each postback?Sorry if any of this is confusing, let me know if you need clarification.

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Web Forms :: Custom Web Part Properties?

Oct 27, 2009 07:55 PM

Could web part properties be applied after web part is rendered ? That is, when web part is rendered, no property value is specified and nothing is shown in the web part. After a property is specified, then only web part is populated using the property(by fetching data from a DB for instance).

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Intellisense When Setting A Value On Custom Properties

Dec 06, 2010 04:10 PM

I have the following property:


I want to be able to have the user see the available options when they try to do something such as DateRange = .... (i want intelllisense in here and I can set the values). Is this a possible functionality? I am using VS 2008 .NET 3.5

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